Identification standard of controlled tools:
1, dagger, triangular knife, triangular scraper, semicircular scraper, invading knife, peeling knife, sheep bone knife, hunting knife, spring knife;
2. Single-edged and double-edged sharp knife with self-locking device or non-folding, the blade body is more than 8 cm;
3. Tatsu Yamashiro (blade-cutting), sword and other equipment;
4. Tibetan knives, waist knives and boot knives used by ethnic minorities;
5. Other tools that may endanger social order.
Legal basis: Article 1 of the Standards for Determining Controlled Cutters issued by the Ministry of Public Security.
Anyone who meets one of the following criteria can be identified as a controlled tool:
(1) Dagger: a single-edged, double-edged or multi-edged sharp knife with a handle, a lattice and a blood groove and a tip angle of less than 60 degrees;
(2) Triangular scraper: a processing tool with three blades;
(3) Spring knife with self-locking device: a folding knife that can be fixed and self-locked by a spring or bolt in the handle after the knife body is unfolded or ejected;
(4) Other similar single-edged, double-edged and triple-edged sharp knives: all kinds of single-edged, double-edged and multi-edged knives with a blade angle of less than 60 degrees and a blade length of more than 150 mm;
(five) other kinds of single-edged, double-edged and multi-edged tools with a vertex angle greater than 60 degrees and a blade length greater than 220 mm.